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Bifunctional Zeolite- and Aluminophosphate-Based Catalysts for Hydrocracking and Hydroisodeparaffinization. Part 1. The Influence of the Nature and Activity of the Hydrogenating and Acidic Components on the Activity and Selectivity of Hydrocracking Cataly
https://doi.org/10.18412/1816-0387-2019-3-235-239
Abstract
Sulfur resistance of nickel, platinum and palladium metals on acid supports was studied depending on the support nature. Catalysts comprising nickel, platinum, palladium metals and sulfides as hydro-dehydrogenating components were examined for hydrocracking of n-octane. HY, ZSM-5, ZSM-23, ZSM-12, as well as silicoaluminophosphates SAPO-11 and SAPO-31 were used as the supports. The sulfur resistance of the supported metals in the catalysts was shown different and independent of the properties of the acidic support under the reaction conditions. Hydrocracking follows two different pathways depending on the activity and nature of the hydro-, dehydrogenating component (a metal or the sulfide), as well as on the ratio of activities of the acidic and hydrogenating components. The first pathway is preferable cracking of the initial paraffin at the early stage, and the second is dehydrogenation of the initial paraffin.
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Review
For citations:
Echevsky G.V. Bifunctional Zeolite- and Aluminophosphate-Based Catalysts for Hydrocracking and Hydroisodeparaffinization. Part 1. The Influence of the Nature and Activity of the Hydrogenating and Acidic Components on the Activity and Selectivity of Hydrocracking Cataly. Kataliz v promyshlennosti. 2019;19(3):235-239. (In Russ.) https://doi.org/10.18412/1816-0387-2019-3-235-239
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